EP 1097287 A4 20020327 - FLOATING SPAR FOR SUPPORTING PRODUCTION RISERS
Title (en)
FLOATING SPAR FOR SUPPORTING PRODUCTION RISERS
Title (de)
SCHWIMMENDE SPIERENTOME ZUR UNTERSTUTZUNG EINER PRODUKTIONSSTEIGLEITUNG
Title (fr)
RONDIN FLOTTANT DE SUPPORT DE COLONNES MONTANTES DE PRODUCTION
Publication
Application
Priority
- US 9915423 W 19990709
- US 9235498 P 19980710
Abstract (en)
[origin: WO0003112A1] A subsea production system is provided for producing a number of subsea wells which may be arranged in groups. Each of the groups of subsea wellheads (36) is connected to deliver production flow to a subsea manifold (40, 42, 46) each connected to deliver production flow to a production riser (28). A plurality of risers (28) extend from the subsea manifolds for groups of wells. A deep draft floating spar (10) is located above the wellheads (36) with mooring lines (14) and has a production paltform (12) located above the sea surface (11) and has buoyancy and ballast chambers (18) to control floatation. The spar structure defines a riser bore (22) receiving the risers extending from the subsea wellheads (36) to the platform (12). The spar is also capable of being shifted laterally by mooring lines for positioning above a selected well to thus permit well intervention activities as needed. The subsea wells are each provided with wellheads having a removable cap (40) to permit ROV (54) actuated cap removal and replacement.
IPC 1-7
IPC 8 full level
B63B 35/44 (2006.01); E21B 17/01 (2006.01); E21B 19/00 (2006.01); E21B 33/035 (2006.01); E21B 33/076 (2006.01); E21B 41/04 (2006.01); E21B 43/01 (2006.01); E21B 43/017 (2006.01)
CPC (source: EP US)
B63B 35/44 (2013.01 - EP US); B63B 35/4406 (2013.01 - EP US); E21B 17/015 (2013.01 - EP US); E21B 19/004 (2013.01 - EP US); E21B 33/035 (2013.01 - EP US); E21B 33/076 (2013.01 - EP US); E21B 41/04 (2013.01 - EP US); E21B 43/01 (2013.01 - EP US); E21B 43/0175 (2020.05 - EP US)
Citation (search report)
- [XY] US 4702321 A 19871027 - HORTON EDWARD E [US]
- [XD] US 5706897 A 19980113 - HORTON III EDWARD E [US]
- [Y] US 4730677 A 19880315 - PEARCE JOSEPH L [US], et al
- [Y] US 4378848 A 19830405 - MILBERGER LIONEL J
- [Y] US 3602302 A 19710831 - KLUTH CHARLES S
- [Y] US 5706893 A 19980113 - MORGAN MICHAEL GRAHAM [GB]
- [A] GB 2310832 A 19970910 - DEEP OIL TECHNOLOGY INC [US]
- [A] US 4704050 A 19871103 - WALLACE NORMAN R [US]
- See references of WO 0003112A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0003112 A1 20000120; AU 4975799 A 20000201; BR 9912257 A 20011016; EP 1097287 A1 20010509; EP 1097287 A4 20020327; EP 1097287 B1 20031029; NO 20010104 D0 20010108; NO 20010104 L 20010307; NO 316463 B1 20040126; OA 11697 A 20050113; US 2001013414 A1 20010816; US 6336421 B1 20020108
DOCDB simple family (application)
US 9915423 W 19990709; AU 4975799 A 19990709; BR 9912257 A 19990709; EP 99933770 A 19990709; NO 20010104 A 20010108; OA 1200000364 A 19990709; US 35033299 A 19990709; US 73991501 A 20010327